WatermarkGauge (Flink : 2.0-preview1 API)

java.lang.Object
- org.apache.flink.streaming.runtime.metrics.WatermarkGauge

All Implemented Interfaces:

Gauge<Long>, Metric
```
public class WatermarkGauge
extends Object
implements Gauge<Long>
```
A Gauge for exposing the current input/output watermark.

Constructor Summary

Constructors
Constructor Description

WatermarkGauge()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Long`	`getValue()`	Calculates and returns the measured value.
`void`	`setCurrentWatermark(long watermark)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.flink.metrics.Gauge
getMetricType

- Constructor Detail
  - WatermarkGauge
```
public WatermarkGauge()
```
- Method Detail
  - setCurrentWatermark
```
public void setCurrentWatermark(long watermark)
```
  - getValue
```
public Long getValue()
```
    Description copied from interface: Gauge
    
    Calculates and returns the measured value.
    
    Specified by:
    
    getValue in interface Gauge<Long>
    
    Returns:
    
    calculated value